The life stories of history's greatest minds. From their days as young adults to their final years we see their discoveries, loves, relationships, causes, flaws and genius.

Famed astrophysicist Neil deGrasse Tyson provides clarity for the vision of the cosmos as he voyages across the universe with never-before-told stories that delve into the scientific concepts of the laws of gravity and the origins of space and time.

The famed survivalist takes A-list celebrities on journeys into the wildest locations around the world, forcing the stars to push their bodies and minds to the limit to successfully complete the adventure of a lifetime.

Fishing is a hard life, and harder with bluefin stocks depleted. In Gloucester, Massachusetts, there's a special breed of fishermen. For generations they've used rod and reel to catch the elusive bluefin tuna. They depend on these fish for their livelihood, and the competition is brutal. Over the next 10 weeks, the most skilled fishermen will set out in the frigid waters of the North Atlantic in hopes of catching the valuable bluefin tuna. When one bluefin can bring in as much as $20,000—they'll do whatever it takes to hook up.

Viewers go deep into an Alaskan winter to meet six tough and resilient residents as they try to stay one step ahead of storms and man-eating beasts to make it through to spring. The closest neighbor to Sue Aikens is more than 300 miles away. Eric Salitan subsists solely on what he hunts and forages. Chip and Agnes Hailstone catch fish for currency in bartering for supplies, and Andy and Kate Bassich use their pack of sled dogs for transportation.

The maiden crew of the Daedalus spacecraft must push itself to the brink of human capability in order to successfully establish the first sustainable colony on Mars. Set both in the future and in the present day, this series blends scripted elements set in the future with documentary vérité interviews with today’s best and brightest minds in modern science and innovation, illuminating how research and development is creating the space technology that will enable our first attempt at a mission to Mars.

Explore the tragic death of Princess Diana on the 30th anniversary of that paparazzi car chase through a Parisian motorway tunnel.

Built for the Kill is a nature series made by Granada Wild for the National Geographic Channel. It was made from 2001–2004, with a total of 31 episodes. Each episode runs for approximately 48 minutes including the credits and opening titles. Episodes of Built For The Kill cover a topic or habitat for predatory animals, such as "Coral Reef" or "Packs". If the episode is the name of a Habitat, the episode will feature predators from that environment. If the episode's name is something like "Jaws" or "Packs", it will feature predators who utilize the name of the episode. Built For The Kill uses a graphical approach to catch the audiences attention, often showing inner workings of the predatory animals by using diagrams. Some effects seen are used to show the audience what they can't really see, but is there. This graphical approach to a nature documentary makes Built for the Kill very interesting to watch.

Built for the Kill's classic opening was a montage of creatures featured in the first 7 episodes with a catchy theme song. This opening was changed further into the series to one that shows the National Geographic logo in various parts. The theme song stayed the same however.

Cesar Millan has been called the Dr. Phil for Dogs. With an uncanny ability to rehabilitate problem dogs of all shapes and sizes. Each episode of the Dog Whisperer documents the remarkable transformations that take place under Cesar's guidance and teaching, helping dogs and their owners live happier lives together.

Firewalkers. Sword-swallowers. A man who can hammer a nail into his nose. A woman who can hang herself from hooks. You see them, and you wonder how they can possibly do it and not get hurt. Trick photography? Well, not always. Scientists deconstruct how some people are able to do what seems impossible, explaining the unexplainable. They also talk to the people who perform these stunts to find out why, how, and maybe most important -- what made them try it in the first place?

The series will explore dynamics of life on the reef and beyond via a clown fish.

MegaStructures is a documentary television series appearing on the National Geographic Channel in the United States and the United Kingdom, Channel 5 in the United Kingdom, France 5 in France, and 7mate in Australia.

Each episode is an educational look of varying depth into the construction, operation, and staffing of various structures or construction projects, but not ordinary construction products.

Generally containing interviews with designers and project managers, it presents the problems of construction and the methodology or techniques used to overcome obstacles. In some cases this involved the development of new materials or products that are now in general use within the construction industry.

MegaStructures focuses on constructions that are extreme; in the sense that they are the biggest, tallest, longest, or deepest in the world. Alternatively, a project may appear if it had an element of novelty or are a world first. This type of project is known as a Megaproject.

Light at the Edge of the World examines this distressing truth, tracking four indigenous cultures.

Humanity may be losing half of its intellectual, social and spiritual legacy in a single generation, as the world loses a reported one language about every two weeks. Light at the Edge of the World examines this distressing truth, tracking four indigenous cultures, each uniquely dedicated to the preservation of their customs in the face of modernization: Inuit, Nepali Buddhist, pan-Andean and Polynesian.

Seconds from Disaster is a US/UK-produced documentary television programme that investigates historically relevant man-made and natural disasters of the 20th century. Each episode aims to explain a single incidental by analyzing the causes and circumstances that ultimately effected the disaster. The program uses re-enactments, interviews, testimonies, and CGI to analyze the sequence of events second-by-second for the audience.

Narrators for the show are Ashton Smith, Richard Vaughan and Peter Guinness.

Get ready to have your mind messed with! "Brain Games" is a groundbreaking series that uses interactive experiments, misdirection and tricks to demonstrate how our brains create the illusion of seamless reality through our memory, through our sensory perception, and how we focus our attention.

Ancient Secrets is a series on the National Geographic Channel. As the show unfolds, it attempts to investigate the world’s most enduring – and infamous – structures, legends, and icons.

Offers the most intimate and profound exploration into the wide-ranging impacts of the Hurricane Katrina disaster to date. Weaving together critical moments of the crisis and the past events that precipitated it, the series delivers an unparalleled, emotionally raw examination of the storm’s personal, political and societal fallout.

Bear Grylls is taking it up a level by teaching his celebrity guests essential survival skills that they'll have to master and then prove they can use in a high stress situation.